Hello Doom gurus!
I made a tutorial, that will show you how to get a simple 3D model into Doom2!
It is a video tutorial, that you can watch on YouTube:
https://www.youtube.com/watch?v=DmwrZst-2fs&t=0s
Also, you can download the example model file, and all other files in the tutorial package here:
https://github.com/Rick4574/RS-Doom-Mod ... torial.zip
Enjoy!